yeah my iroc has been runnin great since new rebuild,but today it started raining so i went out and fired it to pull it in the garage and it fired up just fine but about 10 seconds after it started the check engine soon light came on so i shut it off and starteed it back up and same thing so i put the pin in the aldl and it is throwing codes 12 and 32 and i know code 12 is just saying the ecm is able to respond but a code 32 is kinda confusing me cause it can mean fault in barometric pressure sensor circuit or fault in egr diagnostic switch or fault in electronic vaccum regulator valve ,sorry about the rambling but my question is how do i figure out exactly whats wrong or narrow the problem form the list of code32 problems,any help would b appreciated,thanx in advance

 

For an '86 TPI, a '32' is related to an EGR system problem. Since the error code was stored before the vehicle was drive, and so soon after startup, it is likely due to the EGR diagnostic temperature switch or the EGR solenoid. If the solenoid valve has electrically failed, the ECM will lock the code. If the EGR diagnostic temperature switch is grounded or closed before the EGR is commanded ON, the M will lock the code.

There is a connector at the EGR vacuum solenoid, and another connector near the distributor for the EGR diagnostic switch.

Remove the EGR solenoid connector and measure resistance of the solenoid coil. There should be about 30-50 ohms for a normal solenoid.

Disconnect the EGR diagnostic temperature switch connector. This should be a single wire connector with a black wire routing to the EGR switch and either a black or dark green wire to the harness. Measure the resistance of the sensor to ground. The resistance should be infinite. If there is any resistance below that, the sensor is failing or the wire is pinched/shorted.

Disconnect the diagnostic switch connector, clear the stored error codes, and see if the problem repeats. If not, the switch is probably shorted or is closing well before it should.

 

I appreciate the reply that was exactly what i needed to know,thanks a bunch,joe